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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureTimber constructionSteinhausenNussbaumer Holzbau AG
Nussbaumer Holzbau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Nussbaumer Holzbau AG plans, manufactures and constructs single- and multi-family homes using ecological timber element construction. The company acts as a general contractor and provides architectural services, prefabrication, interior fit-out, renovations, vertical extensions and roof constructions, as well as project execution.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Timber construction
✓ Offered9
Timber construction for single-family homes
Timber construction for single-family homes, including planning, material selection, technical and structural support, production, execution and handover to customer requirements.
Timber construction for multi-family homes
Timber construction for multi-family homes, with planning, material selection, technical and structural support, production, execution and handover to project requirements.
Conversions and renovations
Conversions, renovations, refurbishments, extensions, storey additions, annexes and energy-efficiency improvements to the building envelope to individual requirements.
Timber storey additions
Timber storey additions with prefabricated wall, ceiling and roof elements, short construction time and dry construction.
Timber construction for public buildings
Timber construction for schools, gym halls and multipurpose facilities, with a focus on environmental compatibility, efficient building and use of local resources.
Timber interior fit-out
Interior fit-out with wood for ceilings and floors, combined with metal, stone and glass as required by the client.
Timber roof structures
Roof structures, element and system buildings, storey additions, extensions and conversions, plus refined interior fit-out using modern planning methods.
Prefabricated dormers
Prefabricated dormers with workshop fabrication, transport, crane installation, airtight connection and completion within a few days.
Architecture and general contracting
Architecture and general contracting for individual homes, with planning, design, cost transparency and advice before, during and after construction.
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4.2/5

Nussbaumer Holzbau AG

Trust & reputation

ranQ Trust Score of Nussbaumer Holzbau AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of November 2026

Nussbaumer Holzbau AG scores 65.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.67.424%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.58.610%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.70.08%
Nussbaumer Holzbau AG scores 89.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.70.07%
Nussbaumer Holzbau AG scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).86.722%
Nussbaumer Holzbau AG scores 51.4 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.51.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Nussbaumer Holzbau AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.4 out of 5 stars from 9 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.4
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle4.49
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Comparisons

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Location

Sennweidstrasse 30
6312 Steinhausen
Opening hours
Mon
07:00 - 12:00, 13:30 - 18:00
Tue
07:00 - 12:00, 13:30 - 18:00
Wed
07:00 - 12:00, 13:30 - 18:00
Thu
07:00 - 12:00, 13:30 - 18:00
Fri
07:00 - 12:00, 13:30 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-108.231.331
Founded
1999 · 27 years
Last commercial register change
June 12, 2026
Employees
11 to 20

Active in 1 of 26 cantons

  • ZGZug
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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